Fermi surface of the colossal magnetoresistance perovskite La_{0.7}Sr_{0.3}MnO_{3}

(2) University of Bristol; 3); (3) University of Geneva; E.A. Livesay (1); G. Santi (3); R.N. West (1); S.B. Dugdale (2; Switzerland); T. Jarlborg (3) ((1) University of Texas at Arlington; UK

arxiv: cond-mat/9812308 · v1 · submitted 1998-12-17 · ❄️ cond-mat.str-el

Fermi surface of the colossal magnetoresistance perovskite La_(0.7)Sr_(0.3)MnO₃

E.A. Livesay (1) , R.N. West (1) , S.B. Dugdale (2 , 3) , G. Santi (3) , T. Jarlborg (3) ((1) University of Texas at Arlington , (2) University of Bristol , UK

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(3) University of Geneva Switzerland)

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classification ❄️ cond-mat.str-el

keywords fermisurfacecolossalmagnetoresistanceangularannihilationapplicationscalculations

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Materials that exhibit colossal magnetoresistance (CMR) are currently the focus of an intense research effort, driven by the technological applications that their sensitivity lends them to. Using the angular correlation of photons from electron-positron annihilation, we present a first glimpse of the Fermi surface of a material that exhibits CMR, supported by ``virtual crystal'' electronic structure calculations. The Fermi surface is shown to be sufficiently cubic in nature that it is likely to support nesting.

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Fermi surface of the colossal magnetoresistance perovskite La_(0.7)Sr_(0.3)MnO₃

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